Final answer:
The raised parts of the interior of a gun barrel created by the cutting process are known as lands. They work in conjunction with grooves to impart spin to a projectile for increased accuracy.
Step-by-step explanation:
The raised areas created by cuts into a gun barrel are called lands. These lands, along with the grooves, are part of the rifling inside the barrel of a firearm. The rifling is comprised of alternating lands and grooves that spiral down the length of the barrel to impart a spin to the bullet as it is fired. This spinning action helps to stabilize the bullet, contributing to a more accurate flight path toward the intended target.
Raised areas created by cuts into a gun barrel are called lands and grooves. The lands are the raised areas between the grooves, while the grooves are the cut or recessed areas. These features are important in ballistics as they help impart spin to the projectile and stabilize its flight.